A feed-in tariff (FiT) is the amount your electricity retailer credits you for each kilowatt-hour of solar power your system exports to the grid. You generally receive more value by using solar electricity in your home first, because the retail electricity rate you avoid is usually higher than the FiT. Rates and conditions vary between retailers, and some plans may include usage charges, daily fees or export limits. Compare current offers with your retailer and check the plan’s terms before choosing an electricity contract.